Rodent control in urban communities in Johannesburg,South Africa: from research to action

Introduction:

Rodents are troublesome urban pests, with potentially serious health implications. Preventive efforts require greater understanding of social contexts in which they are prevalent. This study aimed to determine rodent prevalence and identify factors associated with rodent infestations in urban residential settings.

Methods:

The Health, Environment and Development study is a longitudinal panel study conducted in five settlements across Johannesburg. Data on socio-economic status, domestic behaviour and housing quality are collected annually. Logistic regression revealed risk factors for rodent prevalence at household level.

Results:

Rodents are a major household problem in all study areas (prevalence 54%). Factors associated with increased prevalence of rats included lower income, living in informal areas, overcrowding, cracks in dwelling walls and internal damp.

Conclusion:

Socio-economic status, housing quality, domestic behaviour and environmental health services are associated with exposure to rodents in urban Johannesburg communities. This information served as a platform to launch rodent awareness campaigns at study sites.     

Book Review

Changing the public health

Rcswch Unit in Health .ad Behaviourd Chutge. University of Edinburgh, John Wdey and Son, London, 1989, ISBN 0 471 91976 4.

The new public health

John Ashtw and RowYd Seymour. Open University Press, 1988. ISBN 0 335 15550 2, £6.95.

Infertility services-a desperate case

N d Pfeilu cmd Allison Qukk. Greater London Association of Community Health Councils, 1988.

A new kind of Doctor

Julian Tudor Hart. Merlin Press, 1988. ISBN 085036 299 7, £11.95 (hardback).     

Alexithymia is associated with low level of vitamin D in young healthy adults

Objective

Vitamin D plays an important role in brain development and functioning. Low levels of vitamin D have been described in several psychiatric and neurologic conditions including autism spectrum disorder. Alexithymia that shows high comorbidity with autism is also present in the general population as well as hypovitaminosis D.

Methods

Here we assessed the relation between alexithymia as measured by the Toronto Alexithymia Scale-20 and vitamin D level in healthy young adults.

Results

We found an inverse correlation between the levels of alexithymia and vitamin D.

Discussion

These data suggest the association between disturbed emotional processing and low levels of vitamin D to be present in young healthy subjects.     

Acceleration of reflex maturation and physical development in suckling rats: effects of a maternal diet containing lipids from goat milk

Objective

To investigate the effects of lipids from goat milk containing conjugated linoleic acids on body weight and reflex ontogeny of neonatal rats treated during the prenatal and suckling periods.

Methods

Three groups were studied: soybean oil (S), coconut oil (C), and goat milk lipids (GM). Reflex maturation (palm grasp, righting reflex, cliff avoidance, vibrissae placing, negative geotaxis, auditory startle, and free-fall righting) as well as body weight evolution were recorded during lactation.

Results

Data demonstrated that the lipids from goat milk accelerated body weight evolution as well as all the reflex maturation investigated (P < 0.05).

Discussion

The supply of goat's milk offered to Wistar rats during pregnancy and lactation provided a variety of fatty acids necessary to accelerate the development of offspring.     

Reproductive and maternity health care services in Finland: perceptions and experiences of Somali-born immigrant women

Objective. To explore immigrant Somali women's experiences of reproductive and maternity health care services (RMHCS) and their perceptions about the service providers.

Design. Five focus group discussions were conducted from April 1999 to June 2000 using a purposeful sampling strategy in order to reach multiparous female Somali-born Immigrants with experiences from the maternity health care in Finland.

Participants. A total of 70 married Somali women aged 18–50 and mother of 2–10 children were studied. Among them, 18 came from Kenya, 32 from Mogadishu and 20 from Hargeysa.

Settings. Of the participants, 45 were living in the city of Vantaa, 22 in the city of Helsinki and 13 in the city of Turku.

Results. Participants were satisfied with the RMHCS they received in Finland. Despite their satisfaction, the health care providers' social attitudes towards them were perceived as unfriendly, and communication as poor.

Conclusions. The women's experiences revealed that they have access to good quality RMHCS in Finland. While their experiences are significant, their perceptions are important for physicians, nurses and midwives in order to achieve culturally competent care.     

Dietary intake of fruits and beta-carotene is negatively associated with amyotrophic lateral sclerosis risk in Koreans: A case-control study

Objectives

Amyotrophic lateral sclerosis (ALS), a rare progressive neurodegenerative disease, has been suggested to have an association with oxidative stress, and thus antioxidant dietary factors may influence pathophysiological mechanisms or the risk of ALS. The purpose of the present study was to investigate the hypothesis that intake of fruits, rich in antioxidant nutrients, is negatively associated with the risk of ALS.

Methods

Seventy-seven Koreans diagnosed with ALS according to the EI Escorial criteria-revised and the same number of age- and sex-matched healthy controls participated in this study. Dietary intake was estimated using the standardized food frequency questionnaire.

Results

Multivariate logistic regression analysis showed that fruit consumption was negatively associated with the risk of ALS, but intake of beef, fish, and fast food were positively associated with the risk of ALS. In addition, the risk of ALS was negatively associated with intake of plant calcium and beta-carotene, while positively associated with intake of total calcium and animal calcium. Intake of vegetables and other antioxidant nutrients had no effect on the risk of ALS in the present study.

Discussion

The intake of fruits and beta-carotene decreases the risk of sporadic ALS in this present study. However, large prospective and interventional studies are needed to confirm the effect of fruits and beta-carotene intake on the risk of ALS.     

Impaired IQ and academic skills in adults who experienced moderate to severe infantile malnutrition: A 40-year study

Objectives

To evaluate IQ and academic skills in adults who experienced an episode of moderate-to-severe infantile malnutrition and a healthy control group, all followed since childhood in the Barbados Nutrition Study.

Methods

IQ and academic skills were assessed in 77 previously malnourished adults (mean age = 38.4 years; 53% male) and 59 controls (mean age = 38.1 years; 54% male). Group comparisons were carried out by multiple regression and logistic regression, adjusted for childhood socioeconomic factors.

Results

The previously malnourished group showed substantial deficits on all outcomes relative to healthy controls (P < 0.0001). IQ scores in the intellectual disability range (< 70) were nine times more prevalent in the previously malnourished group (odds ratio = 9.18; 95% confidence interval = 3.50–24.13). Group differences in IQ of approximately one standard deviation were stable from adolescence through mid-life.

Discussion

Moderate-to-severe malnutrition during infancy is associated with a significantly elevated incidence of impaired IQ in adulthood, even when physical growth is completely rehabilitated. An episode of malnutrition during the first year of life carries risk for significant lifelong functional morbidity.     

Racial discrimination,racial/ethnic segregation,and health behaviors in the CARDIA study

Objective

Racial discrimination has been associated with unhealthy behaviors, but the mechanisms responsible for these associations are not understood and may be related to residential racial segregation. We investigated associations between self-reported racial discrimination and health behaviors before and after controlling for individual- and neighborhood-level characteristics; and potential effect modification of these associations by segregation.

Design

We used data from the longitudinal Coronary Artery Risk Development in Young Adults (CARDIA) study for 1169 African-Americans and 1322 whites. To assess racial discrimination, we used a four category variable to capture the extent and persistence of self-reported discrimination between examination at years 7 (1992–1993) and 15 (2000–2001). We assessed smoking status, alcohol consumption, and physical activity at year 20 (2005–2006). Segregation was examined as the racial/ethnic composition at the Census tract level.

Results

Discrimination was more common in African-Americans (89.1%) than in whites (40.0%). Living in areas with high percentage of blacks was associated with less reports of discrimination in African-Americans but more reports in whites. After adjustment for selected characteristics including individual- and neighborhood-level socioeconomic conditions and segregation, we found significant positive associations of discrimination with smoking and alcohol consumption in African-Americans and with smoking in whites. African-Americans experiencing moderate or high discrimination were more physically active than those reporting no discrimination. Whites reporting some discrimination were also more physically active than those reporting no discrimination. We observed no interactions between discrimination and segregation measures in African-Americans or whites for any of the three health behaviors.

Conclusions

Racial discrimination may impact individuals' adoption of healthy and unhealthy behaviors independent of racial/ethnic segregation. These behaviors may help individuals buffer or reduce the stress of discrimination.     

The non-clinical contents of GP training need more attention. Results from the Finnish Physician Study

Background: The competencies required of a GP are complex and ever-expanding. GP training should adequately cover all the content areas.

Objectives: The aim was to assess GPs’ and GP trainees’ satisfaction with their specialist training and with the contents of training. Trends in assessments over a ten-year period were investigated.

Methods: Data from Finnish national surveys of physicians conducted in 1998, 2003 and 2008 were analysed with 606, 457 and 324 GPs and GP trainees respectively being sampled in the present study. Respondents were asked how satisfied they were with their own specialist training in general, and how much instruction they had received in 12 specific areas during their specialist training.

Results: Satisfaction with GP training slowly increased during the study years. In 2008, 59% of respondents were satisfied with their training, compared to 46% in 1998. The best covered content area was clinical work. Major shortcomings were reported in many of the content areas analysed, e.g. management and leadership.

Conclusion: Although the trend in satisfaction with GP training in Finland is for the better, there are shortcomings, especially in many of the non-clinical content areas of training. More attention needs to be paid to these areas in the future.